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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000932471-12-002868
Filing Date
2012-02-09
Accepted
2012-02-09 13:10:50
Documents
1

Document Format Files

Seq Description Document Type Size
1 pioneerdrillingco.htm SC 13G/A 37900
  Complete submission text file 0000932471-12-002868.txt   39613
Mailing Address PO BOX 2600 V26 VALLEY FORGE PA 19482-2600
Business Address PO BOX 2600 V26 VALLEY FORGE PA 19482-2600 6106691000
VANGUARD GROUP INC (Filed by) CIK: 0000102909 (see all company filings)

IRS No.: 231945930 | State of Incorp.: PA | Fiscal Year End: 1231
Type: SC 13G/A

Mailing Address 1250 N.E. LOOP 410 SUITE 1000 SAN ANTONIO TX 78209
Business Address 1250 N.E. LOOP 410 SUITE 1000 SAN ANTONIO TX 78209 5128287689
PIONEER DRILLING CO (Subject) CIK: 0000320575 (see all company filings)

IRS No.: 742088619 | State of Incorp.: TX | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-33018 | Film No.: 12585792
SIC: 1381 Drilling Oil & Gas Wells